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Chlamydia pneumoniae, and mycoplasma pneumoniae: Are they related to severe asthma in childhood?
Journal of Asthma 2016 August
BACKGROUND: Mycoplasma pneumoniae and Chlamydia pneumoniae are frequent agents of acute respiratory diseases and they have been recognized as infectious triggers of asthma.
OBJECTIVE: To determine the frequency of these triggers and their relationship to severe asthma.
METHODS: 82 patients were enrolled in a prospective cross-sectional study from January 2007 to March 2013 and they were divided into three study groups: Group 1: 27 children with severe asthma, Group 2: 29 children with stable asthma and Group 3: 26 children which was the control group. Serological tests included IgG and IgM for both C. pneumoniae and M. pneumoniae.
RESULTS: Average age ± SD was 10.9 ± 2.5 for Group 1; 10.1 ± 2.9 for Group 2 and 9.9± 1.9 for Group 3 (p = 0.4). M. pneumoniae IgM was observed in 6/27 (22.2%) in Group 1, 2/29 (6.9%) in Group 2 and 0/26 in the Control Group (p = 0,01). C.pneumoniae IgM was present in 7/26 (26.9%) in Group 1, 2/29 (6.9%) in Group 2 and 0/26 in Group 3 (p = 0.005). No significant difference was observed between Group 2 and Group 3. M. pneumoniae IgG was observed in 7/27 (25.9%) in Group 1, 4/29 (13.7%) in Group 2 and 0/26 in the Control Group (p < 0,05). C.pneumoniae IgG was present in 8/26 (30.7%) in Group 1, 5/29 (17.2%) in Group 2 and 0/26 in Group 3 (p < 0,05).
CONCLUSIONS: M. pneumoniae and C. pneumoniae may play a role in the development of severe asthma.
OBJECTIVE: To determine the frequency of these triggers and their relationship to severe asthma.
METHODS: 82 patients were enrolled in a prospective cross-sectional study from January 2007 to March 2013 and they were divided into three study groups: Group 1: 27 children with severe asthma, Group 2: 29 children with stable asthma and Group 3: 26 children which was the control group. Serological tests included IgG and IgM for both C. pneumoniae and M. pneumoniae.
RESULTS: Average age ± SD was 10.9 ± 2.5 for Group 1; 10.1 ± 2.9 for Group 2 and 9.9± 1.9 for Group 3 (p = 0.4). M. pneumoniae IgM was observed in 6/27 (22.2%) in Group 1, 2/29 (6.9%) in Group 2 and 0/26 in the Control Group (p = 0,01). C.pneumoniae IgM was present in 7/26 (26.9%) in Group 1, 2/29 (6.9%) in Group 2 and 0/26 in Group 3 (p = 0.005). No significant difference was observed between Group 2 and Group 3. M. pneumoniae IgG was observed in 7/27 (25.9%) in Group 1, 4/29 (13.7%) in Group 2 and 0/26 in the Control Group (p < 0,05). C.pneumoniae IgG was present in 8/26 (30.7%) in Group 1, 5/29 (17.2%) in Group 2 and 0/26 in Group 3 (p < 0,05).
CONCLUSIONS: M. pneumoniae and C. pneumoniae may play a role in the development of severe asthma.
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